A thermal magnetic power generation device utilizing waste heat from a smelting furnace

Abstract

The present invention discloses a thermomagnetic power generation device utilizing the waste heat of a smelting furnace, and relates to the field of thermomagnetic power generation. The present invention is composed of a heat-conducting copper plate, a cylinder, a main piston, a transmission rod, a main spring, an air duct, a condenser, a heat sink, a secondary piston, a retaining plate, a bolt, a secondary spring, an assembly positioning plate, a right-angle fixing bracket, a bearing fixing, a bearing, a gear, a rack, a transmission shaft, a coil housing, an electromagnetic coil, an outer plate of a generator, a magnet chuck, and a permanent magnet. The heat-conducting copper plate is close to the heat source to transfer heat energy to the coolant in the cylinder. The coolant is vaporized after being heated, and the main piston is displaced by force. When the main piston moves to a certain position, the air duct opens to release pressure to reduce the pressure in the cylinder. After the main piston is reduced in force, it returns to the initial position under the action of the main spring, and the reciprocating motion is formed over and over again. The reciprocating motion of the main piston drives the gear on the transmission rod to rotate, so that the electromagnetic coil coaxially rotating with the gear cuts the magnetic flux lines to generate current.

Description

Technical Field

[0001] The invention belongs to the field of thermomagnetic power generation, and in particular relates to a new thermomagnetic power generation device utilizing waste heat from a smelting furnace. Background Art

[0002] Utilizing the high temperature environment in a metallurgical plant to recover lost heat energy and convert it into electrical energy is an effective energy capture method for energy conservation and emission reduction. In many large metallurgical plants, there are many large equipment that use this method to recover energy. However, large equipment is difficult to manufacture and has high costs. It is not applicable to small metallurgical plants and is not conducive to large-scale promotion. In this regard, we propose a thermomagnetic power generation device that utilizes the waste heat of a smelting furnace. It can be installed on the furnace wall of a smelting furnace, and by collecting and utilizing the heat energy on the furnace wall, it is converted into electrical energy, reducing unnecessary energy loss. The present invention can effectively improve the energy utilization rate of the smelting furnace in a metallurgical plant, convert heat energy into electrical energy to power various other equipment, and the present invention has a heat dissipation braking module that can effectively avoid failure problems caused by overheating of power generation equipment. Summary of the invention

[0003] In order to promote energy conservation and emission reduction in metallurgical plants and solve the problems of high energy consumption and low energy utilization rate of smelting furnaces, the present invention is based on the characteristic that the furnace wall of the smelting furnace in the metallurgical plant has a large amount of heat energy loss when it is working, and fully utilizes the heat lost at the furnace wall of the smelting furnace during operation. A thermomagnetic power generation device utilizing the waste heat of the smelting furnace is provided, so that the originally dissipated heat energy can be recovered and reused.

[0004] The present invention is composed of a heat-conducting copper plate, a cylinder, a main piston, a transmission rod, a main spring, an air guide tube, a condenser, a heat sink, a secondary piston, a retaining plate, a bolt, a secondary spring, a component positioning plate, a right-angle fixing bracket, a bearing fixing part, a bearing, a gear, a rack, a transmission shaft, a coil housing, an electromagnetic coil, a generator outer plate, a magnet chuck, and a permanent magnet. The entire device is divided into three modules, namely, an energy-capturing transmission module, an electromagnetic power generation module, and a heat-dissipating brake module. The energy-capturing transmission module includes a heat-conducting copper plate, a cylinder, a main piston, a transmission rod, a main spring, a component positioning plate, a right-angle fixing bracket, and a rack; the electromagnetic power generation module includes an electromagnetic power generation module composed of bearings, bearing fixing parts, gears, a transmission shaft, a coil housing, an electromagnetic coil, a generator outer plate, a magnet chuck, and a permanent magnet; the heat-dissipating brake module includes components such as an air guide tube, a condenser, a heat sink, a secondary piston, a retaining plate, and a secondary spring.

[0005] Furthermore, the energy capture transmission module: the heat conduction copper plate, the cylinder and the main piston form an enclosed space, and there is coolant in the enclosed space. The heat conduction copper plate is close to the furnace wall of the high-temperature smelting furnace to conduct heat energy; the transmission rod passes through the component positioning plate, one end of the transmission rod is fixed on the main piston, and the other end is connected to a rack; the component positioning plate is fixed to the outer plate of the generator by two pairs of right-angle fixing brackets, and there is a limit hole in the middle of the component positioning plate to limit the displacement direction of the transmission rod; the main spring is sleeved on the transmission rod, one end of which is fixed on the component positioning plate, and the other end is fixed on the main piston. The reasonable combination of the above-mentioned mechanisms constitutes the energy capture transmission module of the power generation device.

[0006] Furthermore, the electromagnetic power generation module: the bearing is fixed on the assembly positioning plate by a bearing fixing member; the gear is meshed with the rack, and the gear is connected to the transmission shaft on both sides; the transmission shaft passes through the bearing, one end is connected to the gear, and the other end is connected to the coil housing; the coil housing is equipped with an electromagnetic coil, and the coil housing rotates together with the transmission shaft. The permanent magnet is fixed in the magnet chuck by interference fit to form a stable magnetic field; the combination of the above-mentioned several mechanisms constitutes the electromagnetic power generation module of the power generation device.

[0007] Through the combination of the energy capture transmission module and the electromagnetic power generation module, the conversion of energy from internal energy to mechanical energy and then to electrical energy is realized: the coolant is heated and vaporized in the enclosed space composed of the heat conduction copper plate, cylinder and main piston, and the volume expansion increases the pressure in the enclosed space. After the main piston is subjected to force, it drives the transmission rod and the rack to move together. The gear meshing with the rack converts the linear motion of the rack into rotational motion, and drives the transmission shaft, coil housing and electromagnetic coil to rotate. The electromagnetic coil rotates in the magnetic field formed by the permanent magnet to cut the magnetic lines of force and generate current.

[0008] Furthermore, a heat dissipation brake module: one end of the air duct is fixed on the exhaust port of the cylinder, and the other end is fixed on the condenser, so that the exhaust port of the cylinder is connected to the condenser; a heat sink is connected to the outside of the condenser; the secondary piston is installed inside the condenser, and one end is connected and fixed to the retaining plate.

[0009] Through the combination of the energy-capturing transmission module and the heat dissipation braking module, the continuous conversion of energy from internal energy to mechanical energy is achieved: the coolant is continuously heated, the pressure in the enclosed space increases to a certain level, the main piston is displaced, the exhaust port on the cylinder is connected to the enclosed space, and the heated and vaporized coolant enters the condenser through the air duct to cool down. At this time, the pressure in the enclosed space decreases, the pressure on the main piston decreases, and it is reset under the action of the main spring, and the cycle repeats.

[0010] Furthermore, the coolant is heated and vaporized and continuously enters the condenser. When the condenser does not dissipate heat in time, the internal pressure is too high. At this time, the secondary piston exerts a reaction force on the vaporized coolant and the condenser, and the condenser, air duct, cylinder, and heat conduction copper plate are displaced away from the furnace wall as a whole, so that the coolant stops being heated. After the coolant in the condenser has completely dissipated heat, the pressure in the condenser decreases. Under the action of the secondary spring, the condenser, air duct, cylinder, and heat conduction copper plate are reset as a whole, and the coolant can be heated again.

[0011] The power generation method of the device comprises the following steps:

[0012] Step 1: The outer side of the heat-conducting copper plate (5) absorbs heat near the heat source, and the heat-conducting copper plate (5) transfers the heat to the coolant in the cylinder (4) so ​​that it is heated and vaporized. The vaporization of the coolant increases the pressure in the closed cylinder (4), and the main piston (6) is stressed and drives the transmission rod (7) to move. The rack (12) is fixed to the transmission rod (7) and moves together with the transmission rod (7). The rack (12) is meshed with the gear (13). The displacement of the rack (12) drives the gear (13) and the transmission shaft (21) to rotate, thereby causing the electromagnetic coil (22) in the coil housing (10) to rotate in the magnetic field formed by the two sets of permanent magnets (23) to cut the magnetic flux lines and generate current;

[0013] Step 2: The heat-conducting copper plate (5) absorbs heat, and the pressure in the cylinder (4) continues to increase. When the main piston (6) is displaced to a certain position under force, the exhaust port of the cylinder (4) opens, and the gasified coolant is introduced into the condenser (24) through the air guide pipe (17) for cooling. At this time, the pressure in the cylinder (4) decreases, and the force on the main piston (6) decreases. Under the action of the main spring (16), the main piston (6) is reset, thereby realizing the reciprocating motion of the main piston (6), so that the electromagnetic coil circulates back and forth to continuously cut the magnetic flux lines to generate current;

[0014] Step 3: When too much vaporized coolant is introduced into the condenser (24) and the heat is not dissipated in time, the internal pressure is too high, and the vaporized coolant exerts a force on the auxiliary piston (1), and the auxiliary piston (1) exerts a reaction force on the vaporized coolant. Because the auxiliary piston (1) is fixed on the retaining plate (3), the condenser (24), the air guide pipe (17), the cylinder (4), and the heat conduction copper plate (5) are displaced as a whole under the reaction force of the auxiliary piston (1). The heat conduction copper plate (5) is away from the heat source, and the coolant stops being heated. After the heat sink (18) dissipates heat for a period of time, the pressure in the condenser (24) decreases. Under the action of the auxiliary spring (19), the condenser (24), the air guide pipe (17), the cylinder (4), and the heat conduction copper plate (5) are displaced and reset as a whole, and the heat conduction copper plate (5) is heated again to transfer heat;

[0015] Repeat steps one to three, thereby collecting thermal energy, realizing thermoelectric conversion to generate electrical energy, and also preventing the device from overheating and stopping working. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall three-dimensional structure diagram of the present invention.

[0017] Figure 2 It is a cross-sectional view of the electromagnetic power generation module of the present invention.

[0018] Figure 3 It is an overall cross-sectional view of the present invention.

[0019] Figure 4 It is a schematic diagram of the combined structure of the generator outer plate, magnet chuck and permanent magnet of the present invention. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below through specific implementation modes in conjunction with the accompanying drawings.

[0021] Specific implementation method: The thermomagnetic power generation device using the waste heat of a smelting furnace is composed of an energy-capturing transmission module, an electromagnetic power generation module and a heat dissipation brake module; the energy-capturing transmission module is composed of a heat-conducting copper plate (5), a cylinder (4), a main piston (6), a transmission rod (7), a main spring (16), an assembly positioning plate (9), a right-angle fixed bracket (8), and a rack (12). The outer side of the heat-conducting copper plate (5) is close to the furnace wall of the high-temperature smelting furnace, and the inner side is connected to the cylinder (4). The cylinder (4) has an exhaust port near the left side. The main piston (6) in the cylinder (4) is connected to the transmission rod (7). The main spring (16) is connected to the transmission rod (7). 16) is sleeved on the transmission rod (7), and its two ends are respectively connected to the main piston (6) and the component positioning plate (9), the component positioning plate (9) is fixed to the generator outer plate (20) through two pairs of right-angle fixing brackets (8), the transmission rod (7) passes through the component positioning plate (9), one end of the transmission rod (7) is fixed to the main piston (6), and the other end is connected to the rack (12); the electromagnetic power generation module is composed of a bearing (11), a bearing fixing member (14), a gear (13), a transmission shaft (21), a coil housing (10), an electromagnetic coil (22), a generator outer plate (20), a magnet chuck (15), and a permanent magnet (23) The invention is composed of a bearing (11) mounted on a component positioning plate (9) and fixed by a bearing fixing member (14) mounted on the component positioning plate (9); a gear (13) meshes with a rack (12); two sides of the gear (13) are welded to a transmission shaft (21); the transmission shaft (21) passes through the bearing (11) and is welded to a coil housing (10); an electromagnetic coil (22) is mounted inside the coil housing (10); a magnet chuck (15) embedded with a permanent magnet (23) surrounds the coil housing (10); the magnet chuck (15) is fixed to an outer plate (20) of the generator; the heat dissipation brake module is composed of an air guide pipe (17), a condenser pipe (24) and a heat dissipation brake module. ), a heat sink (18), a secondary piston (1), a retaining plate (3), and a secondary spring (19); one side of the air guide pipe (17) is installed at the exhaust port of the cylinder (4) and communicates with the exhaust port and is rigidly fixed to the cylinder (4); the other side is rigidly fixed to the condenser (24); the outer side of the condenser (24) is connected with a heat sink (18); the secondary piston (1) is installed in the condenser (24); the right end of the secondary piston (1) is connected to the retaining plate (3); the retaining plate (3) is fixed to the furnace wall of the smelting furnace by bolts (2); one end of the secondary spring (19) is connected to the retaining plate (3) and the other end is connected to the heat sink (18).

[0022] Its working principle is:

[0023] The heat-conducting copper plate (5) forms a closed space with the cylinder (4) and the main piston (6). There is a coolant in the closed space. The heat-conducting copper plate (5) is heated by being close to the furnace wall. The coolant is vaporized after being heated, so that the pressure in the cylinder (4) increases. The main piston (6) is subjected to force and moves together with the transmission rod (7) and the rack (12). The rack (12) is meshed with the gear (13). The gear (13) converts the linear motion of the rack (12) into rotational motion. The gear (13) drives the transmission shaft (21), the coil housing (10) and the electromagnetic coil (22) to rotate together. Two groups of permanent magnets (23) are distributed on both sides of the coil housing (10) to form a magnetic field. When the electromagnetic coil (22) rotates, it cuts the magnetic flux lines to generate current and completes one power generation.

[0024] The coolant is heated and vaporized, and the pressure in the cylinder (4) continues to increase. When the main piston (6) moves to a certain position, the exhaust port on the cylinder (4) is connected to the closed space, and the vaporized coolant enters the condenser (24) through the air guide pipe (17). The vaporized coolant is cooled and dissipated in the condenser (24), so that the pressure is reduced, and the force on the main piston (6) is reduced. Under the action of the main spring (16), the main piston (6) is reset. During the reset process of the main piston (6), the electromagnetic coil (22) cuts the magnetic flux lines again in the magnetic field to generate current and complete one power generation.

[0025] When the heat sink (18) outside the condenser (24) fails to dissipate heat in time, the pressure inside the condenser (24) increases. At this time, the auxiliary piston (1) exerts a reaction force on the gasified coolant and the condenser (24), so that the condenser (24), the air guide pipe (17), the cylinder (4) and the heat conduction copper plate (5) are displaced as a whole, and the heat conduction copper plate (5) moves away from the furnace wall and stops being heated. After the coolant in the condenser (24) dissipates heat completely, the pressure inside the condenser (24) decreases. Under the action of the auxiliary spring (19), the condenser (24), the air guide pipe (17), the cylinder (4) and the heat conduction copper plate (5) are displaced and reset as a whole again. By repeating the above process, the present invention can realize continuous conversion of thermal energy into electrical energy.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "fixation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A thermomagnetic power generation device utilizing waste heat from a smelting furnace, characterized in that: The invention is composed of an energy-capturing transmission module, an electromagnetic power generation module and a heat dissipation brake module; the energy-capturing transmission module is composed of a heat-conducting copper plate (5), a cylinder (4), a main piston (6), a transmission rod (7), a main spring (16), a component positioning plate (9), a right-angle fixing bracket (8) and a rack (12); the outer side of the heat-conducting copper plate (5) is close to the furnace wall of the high-temperature smelting furnace, and the inner side is connected to the cylinder (4); the cylinder (4) has an exhaust port near the left side; the main piston (6) in the cylinder (4) is connected to the transmission rod (7); the main spring (16) is sleeved on the transmission rod (7), and its two ends are respectively connected to the main piston (6) and the transmission rod (7); The plug (6) is connected to the component positioning plate (9), the component positioning plate (9) is fixed to the generator outer plate (20) through two pairs of right-angle fixing brackets (8), the transmission rod (7) passes through the component positioning plate (9), one end of the transmission rod (7) is fixed to the main piston (6), and the other end is connected to the rack (12); the electromagnetic power generation module is composed of a bearing (11), a bearing fixing member (14), a gear (13), a transmission shaft (21), a coil housing (10), an electromagnetic coil (22), a generator outer plate (20), a magnet chuck (15), and a permanent magnet (23), and the bearing (11) is installed on the component The gear (13) is meshed with the rack (12), and the two sides of the gear (13) are welded to the transmission shaft (21). The transmission shaft (21) passes through the bearing (11) and is welded to the coil housing (10). The coil housing (10) is provided with an electromagnetic coil (22) inside and surrounded by a magnet chuck (15) embedded with a permanent magnet (23) outside. The magnet chuck (15) is fixed to the generator outer plate (20); the heat dissipation brake module is composed of an air guide pipe (17), a condenser pipe (24), a heat sink ( The auxiliary piston (1) is composed of a gas guide pipe (17) and a secondary spring (19). One side of the gas guide pipe (17) is installed at the exhaust port of the cylinder (4) and communicates with the exhaust port and is rigidly fixed to the cylinder (4). The other side is rigidly fixed to the condenser (24). The outer side of the condenser (24) is connected with a heat sink (18). The auxiliary piston (1) is installed in the condenser (24). The right end of the auxiliary piston (1) is connected to the retaining plate (3). The retaining plate (3) is fixed to the furnace wall of the smelting furnace by bolts (2). One end of the secondary spring (19) is connected to the retaining plate (3), and the other end is connected to the heat sink (18).

2. A thermomagnetic power generation device utilizing waste heat from a smelting furnace according to claim 1, characterized in that: The cylinder (4) and the main piston (6) and the heat-conducting copper plate (5) inside form a closed space, and there is cooling liquid in the closed space.

3. The thermomagnetic power generation device using waste heat from a smelting furnace according to claim 1, characterized in that: The rack (12) is welded and fixed on the transmission rod (7) and meshes with the gear (13), and the two sides of the gear (13) are fixedly connected to the transmission shaft (21), so that the linear motion of the transmission rod (7) and the rack (12) is converted into the rotational motion of the gear (13) and the transmission shaft (21).

4. The thermomagnetic power generation device using waste heat from a smelting furnace according to claim 1, characterized in that: The permanent magnets (23) are in two groups, symmetrically distributed on both sides of the coil housing (10), and fixed in the magnet chuck (15) by interference fit.

5. The thermomagnetic power generation device using waste heat from a smelting furnace according to claim 1, characterized in that: The cylinder (4) has an exhaust port on the left side, the exhaust port is communicated with one end of the air guide pipe (17), the other end of the air guide pipe (17) is connected to the condenser (24), and the condenser (24) is externally connected to a heat sink (18) to dissipate heat and cool the coolant vaporized in the condenser (24), thereby reducing the pressure in the cylinder (4).

6. The thermomagnetic power generation device using waste heat from a smelting furnace according to claim 1, characterized in that: A secondary piston (1) is arranged in the condenser tube (24), and the right end of the secondary piston (1) is connected to the retaining plate (3).

7. The thermomagnetic power generation device using waste heat from a smelting furnace according to claim 1, characterized in that: The gear (13) is connected to transmission shafts (21) on both sides, and one end of each transmission shaft (21) is connected to the gear (13) and the other end is connected to the coil housing (10).

8. The thermomagnetic power generation device using waste heat from a smelting furnace according to claim 1, characterized in that: A heat sink (18) is distributed outside the condenser tube (24). The auxiliary spring (19) is sleeved outside the condenser tube (24), with one end connected to the heat sink (18) and the other end connected to the fixing plate (3).

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